When charging systems with zeotropic refrigerants, such as R410A, the refrigerant must leave the ...

When charging systems with zeotropic refrigerants, such as R410A, the refrigerant must leave the refrigerant cylinder:
 
  A) As a liquid-vapor mixture. B) As a liquid.
  C) As a vapor. D) Under a pressure of at least 100 psig.

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[Ques. 2] ACCA's Manual J:
 
  A) Provides detailed procedures for installing air-conditioning equipment.
  B) Is a national best practices overview for system installation.
  C) Provides a complete list of board jumper locations.
  D) Is used for determining the heat gain of a residential structure.

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[Ques. 3] You are computing proper ventilation for a house with 1,500 sq ft of floor space, 8-ft ceilings, and you wish to have 1 air change per hour. What is the total ventilation in CFM required?
 
  A) 100 CFM B) 350 CFM C) 200 CFM D) 110 CFM

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[Ques. 4] What type of load study is recommended for duct design?
 
  A) A shell load study B) A room-by-room load study
  C) A monolithic load study D) A unified load study

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[Ques. 5] To correctly identify pollutant pathways, technicians must understand:
 
  A) How to use a particle counter.
  B) The interaction of the building and its associated systems.
  C) How to use a blower door.
  D) The biology of potential microbial pollutants.